If it's from an early 60's Chevy II (duece), then most likely it was behind a six cylinder. Are there 4 large holes in the transmission bellhousing? If so, it WAS behind a six, possibly even a four banger, the 153. If it was behind a V-8, and it was a two barrell carb engine, then it's still the same. 4, 6, small lopo V-8 makes it a 1.82 first gear. You can also pull the input shaft out (there will be a small brass ring on the end that was in the trans, don't lose it), if the shaft measures 12.625 or 12 5/8 inches it's a 1.82; if it measures 12.875 or 12 7/8 inches it's a 1.76 unit. The 1.82 unit will be a 4 pack direct clutch, but can be easily upate to a 5 pack with a hub change. Some of the hi perf/police/taxi Powerglides came with a 5 pack direct, but it's best to still get rid of the cast iron hub and go to a steel one; they're also made in billet aluminum. There's a ton of aftermarket stuff made for these transmissions to really strenthen them for racing purposes. Butch/56sedandelivery.
Also, If the trans is 28" long, it could have come from a 62-67 Chevy II/Nova,full size car 65 on, or 62 327 engine pickup truck. The 62-64 cars had a 25" long Powerglide, and the 62 aluminum glide ONLY came behind the 327, the other engines, 235,261,283 had cast iron units. After 63 all Powerglides were aluminum, and there was even an odd ball "Powerglide" that was a full manual shift unit they called a Torque Drive, but even it was just a simpler Powerglide. Also, after 65 1/2, the rear pump was deleted and they changed to the fine spline (ie. TH 350 style yoke) output shaft. Butch/56sedandelivery.
Last edited by junior stocker; 12-05-2008 at 02:17 AM.